TW427091B - Method and apparatus for keeping a document in focus during noncontact scanning - Google Patents

Abstract

This invention relates to a scanning device for scanning a document such as a photograph using an image sensor device that uses optics that may have a narrow depth of focus, the scanning avoiding contact of the document by the image sensor device during scanning. That is, the focal volume of the sensor device is at a distance from the image sensor device. The scanning device includes a positioning mechanism that maintains the front surface of the document in the focal volume during scanning.

Description

4 270 9 1 A7 B7 I. Description of the Invention (/) MMMA 1. Technical Field The present invention relates to image scanning. The present invention is particularly related to the design and installation of a scanning device. It is used to allow documents to be scanned through a fragile front surface. , In particular, by traversing the front surface of the document by providing a document positioned at the focal length of the scanning device without sliding motion. 2. The description of the relevant prior art will scan the high-quality image content of the actual documents such as business documents into a digital format. These procedures are routinely used for commercial applications such as document scanners and fax machines connected to computers Implemented in the device obtained. A document scanner is used, for example, to convert an image to a digital format and can be included in a computer file. The facsimile machine transmits the digitized information to another facsimile machine via a telephone line, and the receiving facsimile machine then reconstructs the original document. The conversion of documents from physical to digitized format is achieved in an image sensor unit. In the traditional case, the image sensor is a charge coupled device (CCD) or a silicon image sensor. Illumination is provided by an illumination device, and one or more mirrors and lenses are provided in the optical component for simultaneously focusing the surface of the document to the image sensor. These optical configurations allow the possibility of both reducing or enlarging the file, and allow control over the depth of field. The depth of field of these configurations can be very large, and can be scanned in this configuration without contact (in this case, contactless scanning).

In recent years, a small integrated device called a contact image sensor (C I S) has been used in an image sensor unit. One c I paper size applies to China National Standard (CNS) A4 (2 丨 0 χ 297 mm)

I

I * — — — 11 — — — — — — L-Γ _--./ \ (Please read the precautions on the back before filling out this page) Order · Printed by the Consumer Cooperative of Intellectual Property Bureau of the Ministry of Economic Affairs A7 B7 427091 5 2. Description of the invention (y) S is typically a focusing optical component (e.g., a steep-refractive-index lens array, also known as an autofocus lens array) that is illuminated and presents in the form of a narrow focal depth focusing lens array, And one or more bundled sensor arrays. These small units are usually sealed, while lighting and document scanning are performed through a single, scanner window (sca a n n r w i n do w) 〃. The scanning device is constructed so that the c IS image sensor unit can scan the width of a document, where the document is placed at the focal point of the unit, and at the same time the scanning over the length of the document is generated by the document and the Relative motion between the sensor units is performed. The advantages of c I S over traditional sensor technology include: ease of fabrication, reduced component count, fewer moving parts, integrated optical components, and environmentally controlled optical paths. One of the disadvantages is the narrow depth of focus, which will be described further below. The relative motion between the document and the sensor unit was obtained via one of the two following configurations. The first is typically a flat, flat scan scanner and a user of a photocopier. In these configurations, CIS usually does not have a substantial scanner window, and the document is placed on top of a piece of surrounding material, while an image sensor is located on the piece of transparent material Focusing is performed below and via the sheet of transparent material. The C I S image scanner unit is driven via a drive mechanism to move the document along its length, while the document remains stationary. This configuration is not the main field of application of the present invention. The second configuration is suitable for use in facsimile machines, handheld scanners, and sheet-fed scanners, and is the main field of application of the present invention. In this structure, 4 paper sizes are applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm)-— — — 1 — lilllll · * 11- — --- r II ί fl IIIIII Ί / Ί (please first Read the notes on the back and fill out this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economy-42709 1 A7 _ __B7 _._._ V. Description of Invention (5) In this case, the CIS units are arranged so that the focal point of the sensor lens system can coincide with the outside surface of a window that is substantially fixed to the CIS. In order for the document to be in focus, the document must be placed substantially in contact with the scanner window, and the document sensor window contact must be maintained during scanning to keep the document in a shallow focus area. Because of the practicality of this configuration, sealed contact image sensors are usually located in facsimiles and other inexpensive document scanners. Devices using these sealed contact image sensors must be configured so that The document can slide across the scanner window. Because of the advantages of contact image sensor configurations (for example, they are quite durable and low cost), fax machines using these technologies and low cost black and white or grayscale document scanners are common. However, contact image sensors usually have a very small depth of field (two tenths of a millimeter), and therefore high-quality scanning is achieved only through good contact between the document and the scanner window. The rather narrow depth of field in contact with the image sensor causes design problems, and these problems do not occur where the depth of field in the image sensor can be changed. The recent introduction of color contact image sensors provides another design problem: color scanners are used for photographs and printed documents, so the contact image sensors must be compatible with the media in which they are taken. Exposure is not a problem for many types of common document materials, such as smooth paper. However, scanners based on contact image sensor technology suffer from the inability to scan materials that cannot pass smoothly through the scanner unit. A special case is that 'photo files cannot be reliably used for contacting the image sensor. These incompetences are manifested in the following ways: 5 This paper size is applicable to 0¾ home standards (CNS) A4 specifications (21G X 297 mm) " " ------------ -------- Order: 1! ----- line — ΊΛ... (Please read the precautions on the back before filling out this page) A7 f 4 270 91 B7__ 5. Description of the invention (middle) 1 Due to the soft and water-soluble nature of photographic emulsions, wetted contact between photographic documents and the scanner window may occur. When this happens, the coefficient of friction between the document and the scanner window will increase, and the document will stick to the scanner window, and the problem of document transfer will arise. 2. The optical properties of the document / scanner window interface are changed between wet and non-wet contact points. The adhesion of a part of the photographic document to the window will cause streaks or spots on the scanned image, and this is called 'spo t t ng' in this paper. 3 'soft photographic emulsions are more susceptible to damage than paper documents. Due to the direct contact of the photographic document with the sliding contact of the window, the photographic document may be damaged or scratched, or it may be damaged by the dust particles between the document and the scanner window. The inability to apply this type of scanning technology to photographs is recognized by scanner manufacturers, and some of these manufacturers have issued transparent plastic covers to protect photographs when scanning photographs. There is a need in the prior art to overcome the problems encountered when scanning documents such as photos by c I S that may stick to the scanner window or be damaged due to contact. Summary of the Invention In summary, the CIS system has many advantages over traditional technologies, including reduced parts count and cost, and ease of manufacture and completion. One characteristic of c I S that presents a problem is that smaller focal depths require precise positioning of documents during scanning. In the c IS scanner 'this is by 6 — — — — — — — — — — — — I 11--I — I # r L · IIIIII (Please read the notes on the back before filling this page) The paper size printed by the Employees' Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs applies to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) A7 427091 ___B7___ V. Description of the invention (Γ) _____________- l · — i · *, ”( Please read the precautions on the back before filling out this page) The following points are achieved: (1) by focusing on the outside surface of the scanner window, and (2) dragging the document across the window, so the document is being scanned During the stay in focus. This action results in a focused image, but it can cause the scanner to block. It may damage a fragile file, or it may cause some types of optical problems. A solution is to design the scanner window. It can reduce the stickiness of files. For example, it can be seen from the US patent provisional application jointly owned by the applicant `` An improved device that uses a contact image sensor to scan documents such as photographs, etc. '', the inventor of this case is Quaker et al., And Application was made on July 16, 198. Another solution presented here is to adjust the optical components to focus at a point away from the image sensor, and integrate a document positioning mechanism into the scanner design. Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs In the present invention, the image sensor can be manufactured, for example, by a method that has all the advantages of CIS, and the focus is a certain distance from the main body of the image sensor . On the one hand, a document positioning mechanism keeps the document in focus, and this is provided by: (1) providing a set of positioning rollers, which are generally fixed relative to the image sensor to It serves as a reference for document positioning, and (2) a platform for supporting the document. The platform is driven to generate motion by a spring and a link mechanism. By properly driving the platform, the movement of the file can be controlled, so that the front surface of the file, which may be fragile, can be kept in focus and only contact the positioning roller, while the back side of the file is tied at the same time The platform slides. The present invention knows that this aspect is the opposite of the scanner in the conventional technology, and the conventional scanner is included in the conventional scanner. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (2) 0 X 297 mm. 4 2 7 0 9 1 Α7 _ B7 5. Description of the Invention (Dagger) A spring configuration is included to maintain contact between the document and the CIS unit. See U.S. Patent No. 5,463,256 by Olivier Wang et al. The institution of Wang et al. Requires contact between the CI and the document to keep the document in focus and will not function without contact. In one aspect of the invention, the spring mechanism is mechanically driven to keep the document in focus without contacting the imaging unit. One object of the invention is to allow a cIS type scanner to be used for scanning with adhesion to scanning File with browser window preference. Another object of the present invention is to reduce the occurrence of jamming of documents during scanning of photographic documents. Another objective is to reduce the occurrence of speckles during the scanning of photographic documents. Another objective is to reduce document scratches during c IS scanning of documents with fragile image surfaces. One objective is to maintain the document in the source volume of the non-contact image sensor without sliding friction on the front surface of the document substantially. While the following modifications to reduce friction are described herein, other modifications will be apparent to those skilled in the art, and the invention is not limited to the specific embodiments described herein. In addition, when the present invention is designed to scan photos, the present invention is generally quite useful in scanning applications that want to avoid sliding contact, and in general scanning applications. Standard (CNS > A4 specification (210 x 297)) 1 '--------------- {Please read the precautions on the back before filling this page) Order ίί --- line! Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs M 4 270 9 1 A7 _____B7 _______ V. Description of the Invention (7) The first picture is a perspective view of the scanning device during scanning; the second picture is a cross-sectional view of a preferred embodiment. It shows the relative position of the image sensor and the document processing mechanism. The third figure is a cross-sectional view of a preferred embodiment of a non-contact image sensor with a scanner wheel. The fourth figure is a scanner with a link scanner. A perspective view of a preferred embodiment of the image sensor of the roller; the fifth figure is a cross-sectional view of the preferred embodiment of the document support mechanism, in which the document is supported by a platform; the sixth figure is the use of a flexure A perspective view of another embodiment of a document support mechanism; a seventh view is a perspective view of another embodiment of a document support mechanism using a four-bar link; an eighth view is an implementation of a document support mechanism using a four-bar link Example is a side view of the direction of the document movement in the seventh figure; the ninth figure is a cross-sectional view of another embodiment of a positioning mechanism having a curvature of the sensing document, The tenth figure is a perspective view of an embodiment of a handheld scanner according to the present invention; the eleventh figure is a cross-sectional view of another embodiment, wherein the platform is connected to the scanner housing 'and the image sensor is maintained and the platform The twelfth parallel view is a cross-sectional view of another embodiment, in which the platform and the image sensor system are maintained parallel to each other; and the thirteenth view is a cross-sectional view of a preferred embodiment of the platform. 9 This paper size applies the Chinese National Standard (CNS) A4 specification (210 X 297 male f) (Please read the precautions on the back before filling this S) ά Order -i --- ^ ----- line! 427091 A7 B7 Five 'invention description (/) Graphic element companion symbol description 10 0 10 1 10 5 10 7 10 9

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 114 2 0 1 2 0 3 2 0 4 2 0 5 2 0 6 2 0 9 2 11 2 1 3 2 1 5 2 16 2 17 2 19 2 2 1 2 2 3 Scan Device document scanning device body image sensor output image sensor electronic device useful output power supply scanning device opening scanning device opening image sensor first scanner roller second scanner roller first scanner roller support second scanner Roller support platform spring mechanism torsion bar first scanner roller rotation line second scanner roller rotation line torsion bar installation perforated torsion bar installation slot file front surface orientation and pushing mechanism --------- -----, αί— (Please read the note on the back before filling in this page) Order ----------- line! This paper size is in accordance with China Goods Standard (CNS) A4 (210 X 297 mm) 42709 1 A7 B7 V. Description of invention (printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 3 0 1 3 0 3 3 0 5 3 0 7 3 0 9 3 11 3 13 6〇1 6 0 3 6 0 5 6 0 6 6 0 7 6 13 6 15 7 0 3 7 0 5 7 0 7 7 0 9 7 13 7 1 5 8 0 3 Outside the sensor Shell image sensor array substrate focusing optical components (narrow depth of field) light source (lighting unit) source volume beam flexible horizontal component flexible horizontal component flexible vertical component flexible vertical component platform platform to the connection position of the flexible component The connection position of the flexible member. Four-bar linkage (non-vertical). Four-bar linkage. (Non-vertical). Four-bar linkage. Vertical rod. Four-bar linkage. Vertical rod. Link-scanning platform support Scanning device main body Π (Please read the precautions on the back before filling in this page) One eJ%, »^ 1 I— —i ^ 1. Nt .. inn I nn I n — ^. K ^ 1- This paper size is in accordance with China National Standard (CNS) A4 (210 X 297 mm). Printed by the Consumers' Cooperative of the Ministry of Education, Ministry of Finance, Ministry of Economy and Economics 4270 9 1 V. Invention Description (./0 8 11 9 0 0 9 0 1 9 0 5 9 0 6 9 0 7 9 0 8 9 0 9 9 11 9 13 9 15 9 17 9 18 9 19 9 2 0 9 2 1 9 2 2 9 2 3 9 2 4 10 10 110 1 110 3 1 110 4 110 5 A7 B7 spring mechanism scanning device scanning device body first scanner roller second Scanner Roller First Scanner Roller Support Second Scanner Roller Support Platform Orientation and Pushing Mechanism 'Positioning Spring Torsion Bar_ First Positioning Roller Second Positioning Roller First Positioning Roller Support Rotation Line Second Positioning Roller Support Piece rotation line first positioning roller support second positioning roller support first positioning roller support rotation line second positioning roller support rotation line working surface platform first scanner roller second scanner roller orientation and pushing mechanism 12 — II ---- ----- ------ I-. —-I ΓΓ IIIIII (Please read the precautions on the back before filling out this page) This paper size applies to China National Standard (CNS) A4 specifications ( 210 X 297 mm) Λ7 4 270 9 1 ____B7 V. Description of the invention (//) 1 1 0 7 Torsion spring 1 1 0 9 Spring mechanism 1 2 0 1 Platform 1 2 0 3 First scanner roller 1 2 0 4 Second scanner roller 1 2 0 5 First orientation and pushing mechanism 1 2 〇7 Second orientation Detailed description of the embodiment of the pushing mechanism and the pushing mechanism The first figure shows an external view of a scanning device 100. The first diagram may be a conventional configuration of a conventional scanner, and a scanner incorporating the mechanism or any aspect of the present invention is not a conventional technique. Therefore, the first picture is not marked as' \ 习 知 技术 #. A document 10 1 is passed through a set of scanning device openings 1 1 3 located on the opposite side of the scanning device body 10 3. The electrical connection includes a power supply 1 1 1 and a scanner output 1 0 5 which is converted to a useful output 1 0 9 by the electronic device 1 7 . During scanning, the document 101 is moved through the scanner body 103 in the direction indicated in the first figure. A cross-sectional view of a preferred embodiment of the present invention is shown in the second figure. This view is taken by the scanning device 100 in a direction perpendicular to the direction of document movement, and is roughly cut along the A-A section indicated in the first figure. It shows the details of document operation and scanning components. The component related to the aspect of the present invention is an image sensor 201 and the relationship of the sensor to a positioning mechanism. The purpose of these positioning mechanisms in all embodiments is _ 13 1 degree applicable national standards ( CNS) A4 specification (210 x 297 ^ >) ~ (Please read the notes on the back before filling this page) Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs ^ eJ # f— -4270 9 1 A7 ___B7_______ V. Description of the Invention (丨 l) Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economics ------------ Qi! (Please read the precautions on the back before filling this page) Mainly to make documents The front surface 1 0 1 2 2 1 can be kept in focus between the scanners. A preferred embodiment of a positioning mechanism includes a first scanner roller 2 0 3 and a second scanner roller 2 0 4 which are connected to one of a set of corresponding roller supports 2 05 and 2 06. Platform 2 0 9 and a directional and pushing mechanism 2 2 3. The orientation and pushing mechanism 2 2 3 is composed of one or more positioning springs 2 1 1 and a pair of torsion bars 2 1 3. The number of the springs 2 1 1 is selected so that a force can be applied in a balanced manner (perpendicular to the direction of movement). The description in this article will be based on a single spring, and how to modify the design for multiple springs is easily understood by those skilled in the art. The positioning mechanism is suitable for scanning, so that the scanner rollers 2 0 3 and 2 4 can substantially contact the platform 2 9 and the image sensor 2 1 1 is located on the front surface of the document 2 1 1 Side, and the platform 209 is on the opposite side of the file. This embodiment (and other embodiments described herein) allows the document to be described below and in the second, fourth, sixth, eighth A, ninth, and tenth drawings. Scanning in the directions shown in Figures 11, 11 and 12, or scanning in the opposite direction by using the positioning mechanism described in this document. The role of this mechanism is to keep the front surface of the document in focus. This is accomplished by pushing the appropriate platform motion, regardless of which set of scanner rollers are encountered when the document is fed to the scanner. While this function is a preferred embodiment, other embodiments can be combined with the present invention without bidirectional scanning. The third picture is the image sensor 2 in the preferred embodiment of the second picture. The paper size is applicable to the national standard ¥ (CNS) A4 specification (210 X 297 issued). I-Intellectual Property Bureau, Ministry of Economic Affairs Printed by the Consumer Consumption Cooperative 4 2 7 0 9 1 A7 ______B7_____ 5. Sectional view of the invention description ui), these image sensors are referred to herein as non-contact image sensors (NCIS). Also shown in the third figure are components of the positioning mechanism. These components are preferably connected to the image sensor 2 0 1 and include: the scanner rollers 2 0 3 and 2 0 4 and the roller support 2 0 5 and 2 0 6. Unlike the traditional contact image sensor, the image + sensor 2 0 1 system has a source volume 3 1 1 ′, and the source volume is not actually adjacent to the image sensor 2 0 1. Therefore, this image sensor 2 0 1 is suitable for being able to image or focus the front surface 2 2 1 of the document 1 ◦ 1 without contact. The sensor components are preferably all connected to the sensor housing 3 0 1 ′ and include a sensor array 3 3, a substrate assembly 3 5, and a set of narrow focal depth lens arrays 3 7. Focusing optics, and an illumination unit (one light source) 3 0 9. The narrow focal depth lens array is preferably a steep refractive index lens array (also known as an autofocus lens array, such as the SE LFOC lens array of Nippon Steel Glass, Japan). The sensor array 303 is preferably composed of separate color sensing elements that provide red, green, and blue outputs, and the sensor array is arranged along a line parallel to a line perpendicular to the scanning direction, and has An output port electrically connected to the electronic device 107. It must be noted that the linear array system as defined in this article includes a configuration, that is, the separate red 'green and blue (RGB) sensors cannot be arranged linearly, but the overall effect is Sense at least one parallel pixel. For example, other configurations that sense more than one pixel at a time are also included in `` Arranged into a 15-sheet paper size applicable to the Chinese National Standard (CNS) A4 specification (210 x 297 mm) (Please read the precautions on the back before (Fill in this page)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4270 9 1 A7 _____B7__ V. Description of invention (/ < /) Under the definition of line. The power supply 1 1 1 supplies power to the light source. One side of the image sensor 201 facing the document 101 may be an opener or covered with a transparent cover, while the preferred embodiment shown in the third figure does not have a cover . The focusing optical component 3 0 7 is adapted to bring light from the source volume 3 1 1 to the sensor array 3 0 3 at a magnification of 100%. In a preferred embodiment, the focusing optical component is an array of steep-index fiber optic components, such as a N ip pon Sheet Glass SLA20DF (NSG American Company, Somerset, New Jersey, and N ip, Tokyo, Japan). pon Sheet 'Glass Co., Ltd.) or similar. A light beam 3 1 3 is defined from the source volume 3 1 1 through the end boundary of the light reaching the sensor array_3 0 3, and these beams must pass from the source volume 3 1 1 to the focusing optical component 3 0 7, And it reaches the sensor array 303 from the focusing optical component 307 without hitting any non-transmitting subject. The cross-sectional view shown in the third figure shows the entire width of the orientation sensor 201 (except in the case where there is more than one roller on each side of the CIS). All components basically span the width of the document 101, although longer or shorter institutions can also be created. In particular, the scanned portion of the source volume 3 1 1 and thus the front surface 2 2 1 of the document preferably spans the width of the scanner body 103 as shown in the first and second figures. Each of the two rollers 2 0 3 and 2 0 4 is located on one side of the image sensor 2 0 1 with respect to the moving direction. In the preferred embodiment, in order to adapt to the width and to keep the cost low, each roller 2 0 16 paper size applies to China National Standard (CNS) A4 specification (210 X 297 mm) (read the note on the back first (Fill in this page again)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4270 9 1 .. a7 _ * _ B7 __ V. Description of the Invention (), 3) and 2 0 4 are composed of two rollers, as can be seen from Figure 4 Seen in perspective. However, for simplicity of description, each of the rollers 2003 and 204 may be referred to as a roller, which is known as a roller or more than one roller along the width of the document. The rollers 2 0 3 and 2 4 use any method capable of allowing the rollers to rotate along a rotation line, and along the respective rotation lines 2 1 5 and 2 1 6 are mounted to the individual roller supports 2 0 5 With 2 0 6. The roller and the platform 2 0 9 (see the second figure) are suitable for contact between the platform and the roller when the document does not appear in the scanner, and the platform system intersects the source volume 3 1 1 (see Third picture). Therefore, if the front surface of the document contacts the platform and all the scanner wheels, the front surface of the document will also pass through the source volume ’and therefore the front surface of the document will be in focus during the scan. This article does not show any driving components such as belts and gears as well as motors and motor controls required to drive the document over the scanner, and how to include these components in it can be easily understood by those skilled in the art By. The preferred embodiment of the platform is not a substantially flat one, but has a curvature to cause the document to have a slight curvature during scanning, which is to help guide the document through the source volume. In addition, the platform curvature shape is suitable to allow the document to remain in focus regardless of whether the document is moved in the direction shown in the illustration or in the opposite direction. That is, it is symmetrical to a horizontal centerline perpendicular to the scanning direction. These shapes together with the positioning mechanism allow scanning to be performed in the direction shown in the illustration or in the opposite direction. Other embodiments can use only one (please read the notes on the back before filling this page)-I n 1

1 sOJ1 I n * 1 nn I ^ ϋ n I ϋ n ϋ ϋ n I— —. 1 I This paper size applies to China National Standard (CNS) A4 (210 X 297 mm) A7 Consumption by employees of the Intellectual Property Bureau of the Ministry of Economic Affairs Cooperative seal ^ ί 4 270 9 1 __B7_ V. Description of the invention (A) A shape that can be scanned in a single direction. This is a person who is familiar with this technology and can easily understand it. A sectional view of the preferred embodiment of the platform shape is shown in an enlarged form in the thirteenth figure. It must be noted that, because the curvature is relatively slight, the platform 209 and the document 101 are presented in a flat manner in the second and third figures. The surface of the platform is roughly flat, so the document will not encounter sharp edges during scanning. Points A to Η on the platform surface are marked in the thirteenth figure. On parts AB and GΗ, the platform is substantially flat. In the area of the platform between the rollers, the platform surface is composed of five arcs: arc B C, arc C D, arc D E, arc E F, and arc F G. The scanner rollers in contact with points C and F will be marked as the first scanner roller and the second scanner roller, respectively. The arc B C and the arc C D have a common tangent to a first scanner roller 203 at the point C. Similarly, the arc E F and the arc F G have a common tangent to a second scanner wheel 204 at the point F. In addition, part A B and arc B C 'arc C D and arc D E, arc D E and arc E F, and arc F G and part G Η intersect at a common tangent line, resulting in a flat platform surface. Likewise, the point closest to N C I S 2 0 1 on the arc D E is located in the source volume 3 1 1 and is located at a common tangent to all scanner rollers. As will be easily understood by those skilled in the art, there are other shape configurations, including a flat platform, five different arc groups, and many groups with more or less than five arcs, as long as they can meet It has a contact roller of scanner 2 3 and 2 4 and a volume of 3 3 that passes through the source. This paper size is applicable to China National Standard (CNS) A4 (210 X 297 cm). (Please read (I will fill in this page again)

Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4270 9 1 Λ7 ________ B7 _—_ V. The description of the invention (/ is the surface of 11 and so on. The shape indicated in the thirteenth figure is a document Along the surface of the platform, after passing the first scanner wheel, the document can be pushed up to the shape of the source volume. As the document advances through the scanner, the second scanner wheel system is encountered, driving such The document adopts the shape of the platform. In order to ensure the smooth transmission of the document through the scanner, the tangent of the arc CD at point D should be close to the point F, and the document can be smoothly passed under the second roller. The narrative 'can be understood is that the documents traversed from the second set of rollers to the first set of rollers will also take the outline of the platform and pass the source volume. The fourth picture is the image sensor 2 0 1 and A perspective view of a part of the positioning mechanism that is incorporated into the design of the image sensor 201. This view shows the details of how the scanner wheel fits into the image sensor. The two scanner rollers on each side of the image sensor provide support for the document along the width of the image sensor '. More or fewer of these roller systems can be used. The positioning shown The mechanism provides a mechanism for positioning the document in the source volume during scanning without sliding friction on the front surface of the document. The fifth figure shows the positioning mechanism in a direction perpendicular to the direction of document movement The detailed sectional view of the fifth figure is taken along the line B-B in the first figure. The platform 209 has a length and width large enough to support the document to the maximum length of the source volume And it is better to have a width approximately equal to the opening 113 of the scanning device (not shown in the fifth figure), and a width approximately equal to that between the scanner wheels 2 0 3 and 2 0 in the moving direction The length of the interval between 4 (refer to the second 19 paper standard applicable to the Chinese National Standard (CNS) A4 specification (21〇χ 297 公 1)) ^ iv tf — n V 1 ^ 1 IK I {Please read the precautions on the back first (Fill in this page again) A7 4270 9 1 ___B7____; _ 5. Description of the invention (//) Figure). Other embodiments may have different length compositions. The torsion bar 2 1 3 is located near the width end of the end of the platform 209, as shown in the fifth figure, where the platform 209 is substantially aligned with the direction of document movement. The torsion bar 2 1 3 is connected to the platform 2 0 9 through the perforation 2 17 of some of the torsion bar members, allowing the members to be along an axis substantially parallel to the direction of movement of the document. Rotate. In addition, each of the torsion bars 2 1 3 has a substantially straight member, which is a member that is substantially parallel to the direction of movement of the document (see the second figure). The straight member of the torsion bar 213 is provided with a slot 2 1 9 through a torsion bar in the scanning device body 103, and the positioning spring 2 1 1 is seated on the platform 2 0 9 At the approximate center of the lens, and is compressed in advance to generate a force on the platform toward the image sensor 201. When the platform 2 0 9 can move toward or away from the scanner rollers 2 3 and 2 4, the role of the torsion bar 2 1 3 is limited. The flat plate 209 is pitched (pitchi η gm 0ti ο η) relative to the direction of document movement, and thus the platform will remain substantially parallel to the scanner wheel and thus parallel to the source volume. The components of the preferred embodiment of the present invention enable document scanning to occur without the need to generate sliding friction on the front surface of the document, as will be described in detail below. The positioning mechanism shown in the second, fourth, and fifth pictures uses the image sensor 2 0 1 shown in the third picture, and the 20th paper standard applies to China National Standard (CNS) A4 Specifications (210x297 mm) < Please read the unintentional matter on the back before filling in this page) Order. Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs

IL ------ line-, -------------- ϋ --r II n I 1 · I 427091 A7 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs __B7_ V. Invention Explanation (γ) The platform 2 0 9 in the thirteenth figure allows non-contact scanning by keeping the front surface 2 2 1 of the document in the source volume 311 during scanning at all times. Prior to scanning, the platform 2 0 9 was pushed against by the action of the spring 2 1 1 and substantially contacted the scanner rollers 2 0 3 and 2 0 4. As already explained previously, the scanner rollers 203 and 204 are suitable via the tangent lines of all the scanner rollers passing through the source volume 3 1 1. When the document 101 is fed through the scanning device ′ main body 103 and through the opening 1 13 of the first scanning device, it substantially contacts a first group of scanner rollers 203 and the platform 209. The scanner roller 203 is fixed substantially relative to the scanning device main body 103, and the spring-loaded platform is moved away from the roll-off by a thickness of the document. The torsion bar 2 1 3 series limits the pitching movement of the platform 209, and therefore the platform 209 system always remains approximately parallel to the scanner roller 203. When the document 1 0 1 slides along the platform 2 0 9, the front surface 2 2 1 of the document finally passes through the source volume 3 1 1. This is because the platform 209 is pushed and is perpendicular to the image sensor 2 0. 1Move and move away from the image sensor 2 0 1—a distance of 1 〇 1 thickness. The movement of the document 1 0 1 through the scanning device body 103 is then caused before the document 101 leaves the scanning device body 1 3 through a second scanning device opening 1 1 4, causing the file 1 0 1 to contact a first Two sets of scanner wheels 2 0 4 (see the second figure). In the preferred embodiment, combining the scanner rollers 203 and 204 to the image sensor 201 makes a small and easy-to-assemble unit that will always be able to focus the optical components. In order to make the document 10, Qi, (please read the precautions on the back before filling this page) tr · line · This paper size applies to the national standard (CNS) A4 specification (210 X 297 mm) 427091 A7 _ B7 5 2. Description of the invention (w) 1 can be scanned without damaging the front surface of the document 2 2 1 'The scanning device rollers 2 G 3 and 2 0 4 should be made of a material that can prevent scratches and / or adhesion, and The best way is to choose a soft, rubber-like material that is softer than the front surface 2 2 1 of the document. ≫ The platform 2 0 9 can be made of any hard material with a moderate coefficient of friction. Jia is made of plastic. The one or more positioning springs 2 1 1 can be any spring or a tensioning member connected to the platform 209, which will force the platform 2 9 against the scanner roller 203 'and The system includes, but is not limited to, a spiral or flat spring member connected to the platform and any part of the scanning device main body 103, wherein the scanning device main body 103 is formed to face the image sensor 20 The force of 1. For this purpose, the inclusion of these springs is easily understood by those skilled in the art. Many combinations of springs and positioning mechanisms are possible to maintain the platform at a specific distance and orientation relative to the image sensor, all of which are within the scope of the present invention. In the preferred embodiment, the image sensor is substantially fixed to the scanning device body 103, while the platform is mechanically connected to the scanning device body 103 via a spring mechanism. In the preferred embodiment shown in the third figure, the seating positions of the image sensor 201 and the scanner rollers 203 and 204 are substantially fixed relative to the scanning device main body 103. And the platform 209 is pushed towards the scanner wheel +. The object of the present invention can also be achieved through other embodiments. In other embodiments, 'as shown in the eleventh figure, a flat 22-sheet paper applies the Chinese National Standard (CNS) A4 specification (210 X 297 ^^ 7 (please read the unintentional matter on the back before filling in this Page) Consumption Cooperation of Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs &Printing; J J ϋ n a a nn I nnn II, \ Ji n ϋ ϋ II nn I f ^ s IV nn I nnn A7 427091 _B7___ 5. Description of the invention (> l) (Please read the precautions on the back before filling this page) Table 1 1 0 1 is generally fixed, and the image sensor 2 ο 1 and a set of scanner wheels 1 1 0 3 and 1 1 0 4 It is pushed towards the platform by a directional and pushing mechanism 1 1 0 5, wherein the directional and pushing mechanism 1 1 0 5 shown here is a torsion spring 1 1 07 and a spring mechanism 1 1 0 9. In another embodiment, as shown in the twelfth figure, a platform 1 2 0 1 and a set of scanner wheels 1 2 0 3 and 1 2 0 4 are connected by a first A directional and pushing mechanism 1 2 0 5 and a second directional and pushing mechanism 1 2 07 are directed towards each other. Push. '_ More combinations of positioning mechanisms (with or without a spring mechanism) for maintaining the platform at a specific distance and orientation relative to the image sensor are within the scope of the present invention, and are now It will be explained in the following. Line _ Printed in another embodiment by the Consumer Consumption Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs * As shown in the sixth figure, an orientation and promotion mechanism is composed of a pair of flexible pieces. Each of the flexible pieces is connected to the opposite end of the scanning device body 103 and a platform 6 07. A flexible piece is a rectangular shaped flexible element that can withstand elastic deformation. Each flexure is oriented via two horizontal members 6 0 1 and 6 0 3 and two vertical members 6 0 5 and 6 0 6. Through the flexures thus positioned, a vertical member 6 0 5 A connection method is used to be connected to a surface of the scanning device body 103 at a connection position 615, where the surface is parallel to the moving direction, and the other vertical member 6 0 6 is connected using a connection method. The connection position 6 1 3 is connected to the closest vertical surface of the platform, and this surface is parallel to the direction of movement. Both of the flexible parts are so connected to the 23 paper standards that apply the national standard (CNS) ) A4 size (210 X 297 mm) Λ7 B7 427091 V. Description of the invention (> ~) At the surface of each wide end of the platform 6 0 7, as shown in the sixth figure. These connections are preferably symmetrical along the center line of a plane parallel to the direction of movement. For each flexible member, when one vertical member 6 05 is moved relative to the other vertical member 6 06, the horizontal members 6 0 1 and 6 0 3 will twist and bend (subject to torque), The resulting movement is almost vertical and at the same time provides a restoring force to enable the flexible member to return to its original curved but non-twisted shape. Therefore, 'the flexible member provides force and movement to suppress the action of the connecting rod. Each flexure allows the end of the platform to which the flexure is attached to move in a vertical direction, and the top surface remains parallel and provides an upward force. The symmetrical arrangement of the two flexures keeps the platform parallel and moves in the vertical direction at the same time. The material of the flexible member is preferably selected and the flexible member is initially a pre-tensioner to provide a predetermined restoring force so that the platform 6 07 can be pushed against the scanner. The rollers 203 (these rollers are not shown in the sixth figure) so that no spring is required. In another embodiment, a spring mechanism is also used to give additional restoring force. It must be noted that, in this embodiment, the platform indicated by the component symbol 607 may all be equal to the component symbols in the embodiments shown in the second, third, fourth, and fifth figures. 2 0 9 components. Those skilled in the art will understand clearly that the component 6 0 7 in the sixth figure may be the same as the component 2 0 9 or may be a different component having a similar effect. A four-bar linkage is made up of four hard rods or tie rods, every 24 ----- ill — — — — · 1 IIIIII «ΙΙΓΙ — — — · 1) ^ (锖 Read the precautions on the back first (Fill in this page again.) Printed by the Intellectual Property Bureau of the Ministry of Economic Affairs, Consumer Cooperatives. This paper is printed in accordance with the Chinese National Standard (CNS) A4 (210 x 297 mm). 9 1 A7 --- B7 V. Description of the Invention (γ7?) A rod or tie rod is hinged to two other rods at its ends to form a parallelogram. These four-bar linkages are shown in three different positions in Figures 7A, 7B, and 7C. "Refer to Figure 7A. A typical four-bar linkage has two Vertical rods 7 0 7 and 7 0 9 and two connected (non-vertical) rods 7 0 3 and 7 0 5. Generally, the tie rod system can have any cross-sectional shape (such as a square or a circle). The hinges (for example, the pivot 7 1 1) can be formed by connecting the tie rod with a pin, wherein the pin is passed through the perforation at the end of the tie rod, or if the tie rod has a square or Rectangular sections can be connected to each other by adhesive tape. The eighth diagram A is a plan view showing another embodiment of the positioning and spring mechanism, and the eighth diagram B is a C-C sectional view of the eighth diagram A. The positioning and spring mechanism includes a set of one or Is a multiple four-bar linkage. The two sets of four-bar linkages are preferably used by the user. A vertical rod 7 0 9 of each four-bar linkage is connected to a parallel vertical surface of the platform 8 9. The surface is parallel to the direction of movement. The connections are used at a first connection position. Support 7 1 3. The second vertical pull rod 7 0 7 of each four-bar link is connected to the scanning device main body 8 0 3 using a support 7 1 5 at a second connection position. As can be seen in Figure 8A, the two four-bar linkages are connected symmetrically to the centerline of the platform parallel to the direction of movement. The vertical elements such as Weihai are kept parallel to the vertical surface of the platform 809. Therefore, referring to Figure 8b, the B Hai platform system is restricted to move vertically, and the top surface system is always guaranteed to be 25. This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210 X 297 mm) ea (please first (Read the notes on the back and fill out this page)

Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4270 9 1 A7 B7 V. Description of Invention (^ H1) It must be noted that the connection of the tie rod to the surface of the platform 809 and the main body of the scanning device 803 is preferably a hard one, which is at a right angle to the plane of the four-member link, and the link plane is relatively It is parallel to the surface of the platform 8Ό9 and the scanning device body 803 to which the link is connected. The number of link supports required to obtain proper platform movement is the existence of a single four-bar link at one end. The addition of one or more links on the other end enhances the physicality of the entire mechanism, as if one or more links were attached to the same end. The function of the four-bar linkage is controlled by these connected (non-vertical) tie rods. In one embodiment, the equal movement of a single four-bar lever can be achieved by using two single-bar links to form vertical parts through the surface of the platform and the surface of the scanning body. In these configurations, for each single lever link, one latch is used on a vertical surface of the platform parallel to the direction of movement, and the other latch is used in the same horizontal plane. On the closest vertical surface of the scanner body, some distance from each other. That is, the centerlines of these latches are skewed some distance. A tie rod system with perforations that can be aligned with and attached to the pins can hold each end relative to each surface and allow rotation. Therefore, this system acts as one of these connected (non-vertical) tie rods for a four-bar linkage. A group of similar perforations and tie rods located above (or below) the first group function as a second connecting tie rod. The combined restraint of these two tie rods is the same as a single four-bar linkage. Therefore, in this article and in the scope of patent application, it will be understood that a four-bar linkage system can include unique vertical elements, or 26 paper standards that are applicable to the Chinese National Standard (CNS) A4 (210 X 297). Public love) 'Bu -------------- (Please read the notes on the back before filling this page) Order! , Line 4270 9 1 Α7 Β7 V. Description of the invention (· X) Zhe uses a vertical surface as a vertical pull rod. (Please read the notes on the back before filling in the wooden pages) The embodiment of the four-bar linkage includes a spring mechanism 811, as described in the preferred embodiment, for applying a force to the The platform 809 is used to push the platform against the roller. It must be noted that in these embodiments, the component symbols of the platform and the spring mechanism are different from those used in the embodiments shown in the second, third, fourth, and fifth figures. Component symbol. Those skilled in the art will clearly understand that these components may be the same as these components, or may be different components with similar functions. Printed by the Consumer Property Cooperative of the Intellectual Property Bureau of the Ministry of Economy Stability during the period. The key components of this embodiment include the image sensor 201 and its relationship with the positioning mechanism. The purpose of these positioning mechanisms is to keep the front surface 2 2 of the document in focus during scanning. In this embodiment, 'the positioning mechanism is composed of two scanner rollers 9 0 5 and 9 06, a document support mechanism, and an orientation and pushing mechanism 9 1 1', the scanner roller 9 0 5 and The 9 0 6 series is connected to a roller support 9 0 9 and 9 0 8 by the roller support rotation lines 9 1 9 and 9 2 0, respectively. The document support mechanism is composed of a platform 9 0 9 and a pair of positioning rollers. 9 1 7 and 9 1 8 in which the pair of positioning rollers 9 1 7 and 9 1 8 are connected to the positioning roller support 9 2 1 through the positioning roller support rotation lines 9 2 3 and 9 2 4 respectively. With 9 2 2. The orientation and pushing mechanism 9 1 1 is composed of one or more positioning springs 9 1 3 (one of which is shown as a spring). The 27 paper sizes are applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 4270. 9 1 A7 B7 V. Description of the invention (> 4) 'and a pair of torsion bars 9 1 5. The positioning mechanism is adapted to enable the scanner rollers 9 5 and 9 0 6 to substantially contact the positioning rollers 9 1 7 and 9 1 8 before scanning, and the image sensor 2 0 1 and the scanner roller 9 0 5 and 9 0 6 are on the front surface 2 2 1 side of the document, and the positioning rollers 9 1 7 and 9 1 8 and the platform 9 0 9 are on the opposite side of the document. The positioning rollers 9 1 7 and 9 1 8 and the scanner rollers 9 0 5 and 9 0 6 are suitable to enable the positioning rollers 9 1 7 and 9 1 8 to have a position larger than the scanner rollers 9 0 5 and 9 0 6 Is a large separation distance, and in the absence of a file, 'the platform 9 0 9 series and the image sensor source volume 3 1 1 intersect. The function of this embodiment is similar to that of the second to fifth embodiments, with the addition of curvature in the file. The role of the positioning mechanism when the document 101 Hengyi passes through the scanner will now be explained. When document 101 passes between the first set of sight rollers 9 0 5 and the positioning roller 9 1 7, the document support mechanism moves away from the image sensor 2 0 1 by a distance of a document 1 0 1 thickness. . The unmatched condition between the scan rotation line 9 1 9 and the positioning roller rotation line 9 2 3 causes the document 1 0 1 to bend away from the image sensor 2 0 1 and toward the platform 9 0 9. Then, file 101 touches the platform and moves along the platform. Because the platform is located in the image sensor source volume 3 1 1 when the document does not appear, and because the platform and the document support mechanism are removed from the image sensor 2 0 1 by a document thickness The distance to the front surface of the document 2 2 1 will pass the scanner in focus. Then, the document passes the second set of rollers (9 0 6 and 9 1 8) and leaves the main body of the scanning device 28 ------------. --- (谙 Read the precautions on the back before (Fill in this page) tf · Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs. The paper size is applicable to the Chinese National Standard (CNS) A4 (210 X 297 mm) 4270 91 A7 B7 V. Description of the invention (^ Ί) 9 0 1 . The curvature of the file caused by this combination of the institution is able to add the stability of the structure to the files along the width of the source volume (that is, the horizontal direction perpendicular to the direction of movement), and at the same time push the files to It slides along the platform. This effect makes it easier to keep files in focus during scanning. This function of the positioning mechanism keeps the document in focus and even the direction of scanning is opposite to the direction indicated in the ninth figure. Another embodiment of the present invention is shown in a perspective view of the tenth figure. In this embodiment, the configurations of the third and fourth figures are suitable for use as a handheld scanner. For those skilled in the art, it will be easy to understand how the main difference between a handheld scanner and an automatic scanner is how to achieve relative movement between the document and the scanner sensor. In a handheld scanner, this is achieved by manually moving. A non-contact image sensor with a scanner wheel can be used as a handheld scanner. The scanner rollers 2 0 3 and 2 0 4 are suitable for making the tangent lines of the scanner rollers pass through the source volume 311 (shown in the third figure), and are therefore placed on the front surface of the document on a work surface 2 2 1 The system can be maintained in focus during the scan. In another embodiment where the tenth picture is also applicable, the configurations in the third and fourth pictures are suitable for being able to achieve relative power from those in the main body of the scanning device. The moving parts are removed so that the scanner can be used as an automatic scanner or as a handheld scanner via the removed roller and non-contact scanner mechanism. · Therefore, although the present invention is described with reference to a preferred embodiment, '29 (谞 Read the notes on the back before filling this page) Order: -line _ Printed on paper scales applicable to employees ’cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Chinese National Standard (CMS) A4 grid (210 X 297 mm) 4 2 7 0 9 1 A7 B7 V. Description of the invention These examples are for illustration purposes only. Many combinations of springs and orientation mechanisms attached to the components on each side of the document have been shown to keep the document in focus without causing actual sliding friction on the front surface. In addition, mechanisms that include straight and curved document movement have been described in detail. The preferred embodiment is not intended to be limiting. It will be seen that many changes and modifications can be made without departing from the spirit and scope of the novel concept of the invention, and the scope of the invention is defined by the scope of the attached patent application. ] I— I— n I n K t— · 1 -nn 1 · n.! Line—}. (Please read the precautions on the back before filling out this page) 30 copies of paper printed by the Employees ’Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Standards apply to China National Standard (CNS) A4 (210 X 297 mm)

Claims (1)

A8 B8 C8 D8 Printed by the Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 270 9 VI. Application for Patent Scope 1. A scanning device for scanning the front surface of a document. The scanning device includes: (a)-one scan Device body; (b) a shadow sensor 'which includes: (i) a photosensitive sensor array' which is arranged along a line perpendicular to the scanning direction, and the sensor array has an output port ; (Ii) a focusing optics, which is presented in the form of a focusing lens array with a narrow focal depth, which is suitable for bringing the image of the focal volume to the focus of the sensor array, and the focal depth is vertical to the focal volume The length of the source array line which is perpendicular to the scanning direction of the sensor array line is the line where the source volume is parallel to the sensor array line; (iii) a light source which is suitable for illuminating at least a part of the source volume (Iv) an enclosure having an interior and exterior 'the enclosure is mechanically connected to the scanning device body' and on one side 、 --------- It is used to transmit the illumination light source from the light source to a part of the front surface of the document. The front part of the illuminated document includes at least some intersections between the front surface of the document and the volume of the source. Point, one side of the housing also provides the transmission of light from the front surface portion of the illuminated document to the sensor array via optical components; " (c) electronic components' which are electrically connected to the reactor array An output port for converting the output of the reactor array into a useful signal j (d)-a power supply source, which is electrically connected to the optical paper standard applicable to the Chinese National Standards Institute (CNS) M Saoge ( 210X297 mm) 3fτ * nail. — ^ ----- line, J ---- ^ ---------- (please note the notes on the back of the S report before filling in this page) 4 2 7 0 9 1? 8s D8 VI. Patent application source for supplying power to the light source; and (e) a positioning mechanism which is mechanically connected to the main body of the scanning device for the front surface of the document Maintained in the source volume during the scan, the sensor array, the light Member, and the light source is linked to both the image sensor housing interior 'and the volume of the source lines located outside of the housing of the image sensor should be. — 2. The scanning device described in item 1 of the scope of patent application, wherein the positioning mechanism (e) includes: (i) a first scanner roller and a second scanner roller, which are used for The front surface of the document is seated, each of the first and second rollers has a rotation line, the rotation lines are parallel to the sensor array line, and are fixed in a suitable space substantially relative to the image sensor. And the roller system is located on each side of the source volume line; (ii) a platform for providing support to the document during scanning, the platform having a larger area than between the scanner rollers The length of the interval; and (i 1 i) an orienting and pushing mechanism, which drives the movement of the platform relative to the scanner wheel, _... the platform and the roller system are suitable, so that the document is scanned Can be sandwiched between the platform and the roller during insertion, the positioning mechanism is suitable, so the document can slide along the platform during scanning, the platform and the scanner roller By the orientation and pushing mechanism being pushed and driven together, V can move substantially perpendicular to the source volume line,--^ ------- Zhang Zhijiu uses Chinese National Standard (CNS) A4 Present (210X: mmm) ,. (Please read the 1 ^ facet notes before filling out this page) ------ Order-^ ----- Line-'Consumption by the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 4270 9 1 A8 B8 C8 D8 Printed by the Consumers 'Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the cooperative 6. When there is no document between the platform and the scanner wheel' the platform is generally in contact with the The scanner wheel, and when no document appeared between the platform and the scanner wheel, the platform was located in the volume of the 歳 'source. 3. According to the scanning device described in item 2 of the scope of the patent application, wherein the orientation and pushing mechanism is mechanically connected to the platform and the scanning device body, and the scanner roller and the image sensor are mechanically The method is linked to the main body of the scanning device. 4. According to the scanning device described in item 2 of the scope of the patent application, wherein the orientation and pushing mechanism is mechanically connected to the image sensor, the scanner roller, and the main body of the scanning device, and the platform is Connected to the main body of the scanning device. 5. According to the scanning device described in item 2 of the scope of patent application, wherein the orientation and pushing mechanism further includes: (a) a first orientation and pushing mechanism, which is mechanically connected to the platform and The main body of the scanning device; and (b) a second orientation and pushing mechanism, which are mechanically connected to the first and second scanner rollers, the image sensor, and the main body of the scanning device. '6. The scanning device described in item 2 of the scope of patent application' wherein the scanner roller system is mechanically connected to the image sensor housing using a roller support, and the roller support system is connected to the image sensor housing. Sensor housing. 7. According to the scanning device described in item 2 of the scope of the patent application, its (please read the precautions on the back before filling this page) fn ten · if. Ψ t ^ i ^ i ^^^ 1 ^^^ 1 ^^^ 1 ^^^ 1 ^^^ 1 ^^^ 1 ^^ 1 mm * v ^ i · This paper size applies to China National Standard (CNS) (—210X297 ^ '嫠) A8 B8 C8 D8 1270 9 1 6. The scope of patent application 0-I (please read the notes on the back before filling in this business). The platform is composed of a fixed work surface. The relative movement between the document and the image sensor is borrowed. Produced by manual movement. 8. According to the scanning device described in item 3 of the scope of the patent application, wherein the orientation and pushing mechanism includes a flexure, the flexure is mechanically connected to the platform and the main body of the scanning device. 9. According to the scanning device described in item 3 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more four-bar link and a spring mechanism, the four-bar link and spring mechanism It is mechanically and mechanically connected to the platform and the main body of the scanning device. 10. The scanning device described in item 3 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more torsion bars and a spring mechanism, and the torsion bar and spring mechanism are mechanically It is connected to the platform and the main body of the scanning device. 1 1. According to the scanning device described in item 1 of the scope of patent application, wherein the positioning mechanism includes:. Scanner roller (a)-a first scanner roller and-printed by X Intellectual Property Cooperative, member of Intellectual Property Bureau of the Ministry of Economic Affairs The scanner rollers are used to seat the front surface of the document during scanning. Each of the first and second rollers has a rotation line. The rotation lines are parallel to the source volume line. It is fixed in a suitable space relative to the image sensor array, and the first and second concealer and roller systems are located on different sides of the volume line of the source: (b) a document support mechanism, its system Including: (i) a first positioning roller and a second positioning roller, the positioning rollers have a rotation line 'in the first and second positioning rollers. China National Standard (CNS) Λ4 specification (210X297 (Mm) Ur -------I-Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 2 H9 ίΐ as S _ _ D8 VI. The distance between the lines of patent application is slightly larger than in the first And first The distance between the two scanner roller rotation lines; (ii) a platform with sufficient length and width to support the document to the maximum length of the source volume; and (iii) a support member for Install the first and second positioning roller rotation lines and the platform; (c) an orientation and pushing mechanism, which is used to drive the document support mechanism relative to the scanner roller, and the document support mechanism and The first and second scanner rollers are suitable so that documents can be sandwiched between the first positioning roller and the scanner roller, and between the second positioning roller and the scanner roller during scanning. In between, the positioning mechanism is suitable, so the document can slide along the platform during scanning, the document support mechanism and the scanner roller system are pushed towards each other, and by the orientation and pushing The first and second positioning rollers and the first and second scanner rollers are driven by the mechanism to move substantially perpendicular to the source volume line. To ensure that the systems are able to contact each other substantially when no documents are scanned, and when no documents appear between the platform and the first and second scanner wheels, the platform system is located at the source of the earthquake In the volume. 1 2. The scanning device described in item 11 of the scope of the patent application, wherein the first and second scanner roller supports are connected to the image sensor, and wherein the first The second and second scanner roller trains are rotatably connected to the first and second scanner roller supports, respectively. 1 3. According to the scanning device described in item 11 of the scope of the patent application, the paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297: ^%) C Please read the precautions on the back first | This education) 本 ΐ ΐ Line, 4 270 9 1 VI. Patent application scope ABCD 'wherein the zhixiang and pushing mechanism is mechanically connected to the document supporting mechanism and the scanning device main body, and the first and second scanning gas therapy wheels and the The image sensor is mechanically connected to the main body of the scanning device. 14. The scanning device according to item 11 of the scope of the patent application, wherein the orientation and pushing mechanism is mechanically connected to the image sensor, the first and second scanner rollers, and the scanning device. The main body 'and the document supporting mechanism is mechanically linked to the main body of the scanning device. 15. According to the scanning device described in item 11 of the scope of patent application, the orientation and pushing mechanism further includes (a) a first orientation and pushing mechanism, which is mechanically linked to the document A supporting mechanism and the main body of the scanning device; and (b) a second orientation and pushing mechanism 'mechanically connected to the first and second scanner rollers, the image sensor, and the main body of the scanning device . 16. The scanning device according to item 13 of the scope of the patent application, wherein the orientation and pushing mechanism includes a flexure, the flexure is mechanically connected to the document support mechanism and the scan Device body. 17. The scanning device described in item 13 of the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the first scanning and positioning roller at a common tangent line that intersects the platform. And can produce curvature in the file. This paper size is in accordance with Chinese National Standard (CNS) A4 specification (210x297 male thin) (please read it first & save the legal matters in this book). 2 8 8 8 8 ABCD Consumption Cooperation by Employees of the Intellectual Property Bureau of the Ministry of Economic Affairs 6. Printed Patent Application Park 1 8. According to the scanning device described in Item 13 of the scope of patent application, the scanning and positioning roller system is suitable for By positioning the second scanning and positioning wavewheel at a common tangent that intersects the platform, a curvature can be generated in the file. 19. The scanning device described in item 13 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more four-bar linkages which are mechanically connected to The document supporting mechanism and the main body of the scanning device. 20. The scanning device described in item 19 of the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the first scanning and positioning roller at a common tangent intersecting the platform. Ability to generate curvature in the file. 21. The scanning device according to item 19 in the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the second scanning and positioning roller with a common tangent line that intersects with the platform. Generates curvature in the file. 2 2. The scanning device described in item 13 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more torsion bars that are mechanically connected to the document support mechanism And the main body of the scanning device. 2 3. The scanning device described in item 22 of the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the first scanning and positioning roller with a common tangent line intersecting the platform, And can produce curvature in the file. This paper size is applicable to China National Standard (CNS) A4 specification (210X297) (please note the item on the back with the $ item and fill in the form page) ABCD 4270 9 1 VI. Patent application Fanyuan 2 4. According to the scanning device described in item 22 of the scope of the patent application, wherein the scanning and positioning roller is adapted to connect the second scanning and positioning roller with the The platform intersects the common tangent to sit, and can generate the i-rate in the file. 2 5. A positioning mechanism used in a scanning device for scanning the front surface of a document. The scanning device has a scanning device body and an image sensor. The image sensor has a sensor array, A source volume, and an image sensor. 2 6. According to the scanning device described in item 25 of the scope of the patent application, wherein the positioning mechanism includes: (1) a first scanner roller and a second scanner roller, which are used to make the document forward The surface is seated, each of the first and second rollers has a rotation line, the rotation lines are parallel to the sensor array line and are fixed in a suitable space substantially relative to the image sensor, And the roller system is located on each side of the source volume line; (ii) a platform for providing support to the document during the scan, the platform having a larger space than the space between the scanner wheels Length; and '' (i 1 1) an orientation and pushing mechanism that drives the platform relative to the scanner wheel, which is suitable for the platform and the roller system so that the document can be clamped during scanning Between the platform and the roller, the positioning mechanism is suitable, so the document can slide along the platform during scanning, and the platform and the scanner roll in f to borrow oil Orientation and promotion of the mechanism were pushed together. Zhang Zhijiu used the Chinese National Standard (CNS) M specifications (2 丨 0 > < 297 ^ ％) " (Please read the precautions on the back before filling this page) i · Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 4 2 70 9 1 .. A »C8 ---_ ^ VI. The scope of the patent application is moved and driven, and it can move approximately perpendicular to the volume line of the source. When no document appears between the platform and the scanner wheel, the platform is generally in contact with the scanner wheel, and when no document appears between the platform and the scanner wheel, the platform system Is located in the source volume. 2 7. According to the scanning device described in item 26 of the scope of patent application 1 wherein the orientation and pushing mechanism is mechanically connected to the platform and the scanning device main body, and the scanner roller and the image sensor system are Mechanically connected to the main body of the scanning device. 2 8. According to the scanning device described in item 26 of the scope of the patent application, wherein the orientation and pushing mechanism is mechanically connected to the image sensor, the scanner roller, and the scanning device master, and the The platform is connected to the main body of the scanning device. 29. According to the scanning device described in Item 26 of the scope of patent application, the orientation and pushing mechanism further includes: (a) a first orientation and pushing mechanism, which is mechanically connected to the A platform and the scanning device body; and (b) a second orientation and pushing mechanism, which is mechanically connected to the first and second scanner rollers, the image sensor, and the scanning device body. 30. The scanning device described in item 26 of the scope of the patent application, wherein the scanner roller is mechanically connected to the image sensor housing by rotating the roller support, and the roller support is connected To the sensor case. The M's scale is applicable to China's national standard (CNS > A4 specification (210 × 2971%) (please read the precautions on f before filling in this card) Printed by the employee consumer cooperative 427091 H C8 ----- D8 VI. Patent application ^-'' 3 1. According to the scanning device described in item 26 of the patent application 'where the platform consists of a fixed work surface It is constituted that the relative movement between the document and the image sensor is generated by manual movement. 3 2. According to the scanning device described in item 27 of the patent application scope, wherein the orientation and pushing The mechanism includes a flexure, which is mechanically connected to the platform and the main body of the scanning device. 3 3. According to the scanning device described in item 27 of the patent application scope, wherein the orientation and The pushing mechanism includes one or more four-bar links and a spring mechanism, and the four-bar links and spring mechanisms are mechanically connected to the platform and the scanning device body. 3 4. The scanning device described in item 27 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more torsion bars and a spring mechanism, and the torsion bar and spring mechanism are mechanically The scanning device is connected to the platform and the main body of the scanning device. 3 5. According to the scanning device described in item 25 of the patent application scope, the positioning mechanism 1 includes: (a) a first scanner roller and a The second scanner rollers are used to seat the front surface of the document during scanning. Each of the first and second rollers has a rotation line, and the rotation lines are parallel to the source volume line. 'And it is fixed in a suitable space substantially relative to the image sensor array, and the first and second scanner roller systems are located on different sides of the source volume line; (b _) a file support Institutions, including the following: --------- 0 — ^ —---- Order · — ^ ----- M J- (Please read the $ item on the back before filling this page ) This paper / ¾ degree is applicable to China National Standard (CNS) Α4 210X297 ^ 2 嫠) A8 B8 C8 D8 427091 'Sixth, the scope of patent application (i) a first positioning roller and a second positioning roller, these storage roller system has ~ rotation lines' in the first and second The distance between the rotation lines of the positioning rollers is slightly larger than the distance between the rotation lines of the first and second scanner wheels; (ii) a platform 'that has sufficient dimensions to support the document to the source volume. Maximum length; and (iii) a support for mounting the first and second positioning roller rotation lines and the platform: (c) an orienting and pushing mechanism for driving the document support mechanism relative For the movement of the scanner roller, the document support mechanism and the first and second scanner rollers are suitable so that the document can be sandwiched between the first positioning roller and the scanner roller during scanning. And between the second positioning roller and the scanner roller, the positioning mechanism is suitable, so the document can slide along the platform during scanning, and the document supports The first and second positioning rollers and the first and second positioning rollers and the first And the second scanner roller system are suitable so that the systems can substantially contact each other when no document is scanned, and when no document appears between the platform and the first and second scanner rollers, The platform is seated in the source volume. 3 6. The scanning device described in item 35 of the scope of the patent application, wherein the first and second scanner roller supports are connected to the image sensor, and wherein the first and second scanners of the positioning mechanism are The U-scale scale of the two scanner rollers is applicable to the Chinese National Standard (CNS) A4g (210X297 to 嫠): --- 01-1 ---- order · 1 ^ ----- line} v (Please read the first (Note the $ items and then fill out this page) Printed by the Employees 'Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs Printed by the Employees' Cooperatives of the Intellectual Property Bureau of the Ministry of Economy 4 270 9 1 Bd ___ D8 1 ___ The first and second scanner roller supports. 3 7. The scanning device 1 described in item 35 of the scope of patent application, wherein the orientation and pushing mechanism is mechanically connected to the document support mechanism and the scanning device main body, and the first and second scanners The roller and the image sensor are mechanically connected to the main body of the scanning device. 38. The scanning device described in item 35 of the scope of the patent application, wherein the orientation and pushing mechanism is mechanically connected to the image sensing device, the ghai table one and the brother one scanner rollers, and the scanning device. The main body of the device, and the document supporting mechanism is connected to the main body of the scanning device in a beech manner. 39. According to the scanning device described in item 35 of the scope of patent application, the orientation and pushing mechanism further includes: (a) a first orientation and pushing mechanism, which is mechanically connected to the A document supporting mechanism and the main body of the scanning device; and (b) a second orientation and pushing mechanism which is mechanically connected to the first and second scanner rollers, the image sensor, and the scanning Device body. . '40. The scanning device described in item 37 of the scope of the patent application, wherein the orientation and pushing mechanism includes a flexure that is mechanically connected to the document support mechanism and The main body of the scanning device. 4 1. According to the scanning device described in item 37 of the scope of the patent application * The scanning and positioning roller is suitable for the first scanning and positioning (please read the precautions of back rain before filling in each page) This paper scale uses the Chinese National Standard (CNS) A4 specification (210X297 mm) ABCD 4 2 70 9 T 6. The scope of patent application is located on a common tangent line that intersects with the platform to locate, and can produce / curvature In the file. 4 2. The scanning device described in item 37 of the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the second scanning and positioning roller with a common tangent line intersecting the platform, And can produce curvature in the file. 4 3. According to the scanning device described in item 37 of the scope of the patent application, 'wherein the orientation and pushing mechanism includes one or more four-bar linkages', the four-bar linkage is mechanically connected to The document supporting mechanism and the main body of the scanning device. 4 4. According to the scanning device described in item 43 of the scope of the patent application, wherein the scanning and positioning roller is adapted to be seated by the first scanning and positioning roller with a common tangent line intersecting the platform, And can produce curvature in the file. 45 'According to the scanning device described in item 43 of the scope of the patent application', wherein the scanning and positioning roller is adapted to be seated by the second scanning and positioning roller with a common tangent line that intersects the platform, Generates curvature in the file. 46. The scanning device described in item 37 of the scope of the patent application, wherein the orientation and pushing mechanism includes one or more torsion bars that are mechanically connected to the document support mechanism. And the main body of the scanning device. 4 7. According to the scanning device described in item 46 of the scope of the patent application, wherein the scanning and positioning roller system is suitable for applying the first scanning and setting of the Zhang scale to the country ^ system ^ (CNS) A4 specification (2 丨 0X297 $ 漦) — (Please read the note on the back before filling in this page) 1T · Printed by the Employee Consumer Cooperative of the Intellectual Property Bureau of the Ministry of Economic Affairs 9 ο 7 2 ABCD, the patent application scope roller with a platform The intersecting common tangents come to lie, but can produce curvature in the file. 48. The scanning device described in item 46 of the scope of the patent application, wherein the scanning and positioning roller is adapted to seat the second scanning and positioning roller by a common tangent that intersects with the platform. Fall, while being able to produce curvature in the file. (Please read the notes on the back before filling this page) Order Printed by the Consumer Cooperatives of the Intellectual Property Bureau of the Ministry of Economic Affairs 14- Good paper size applies to China National Standard (CNS) A4 (210X297 mm)